Avalanche Forecast
Lizard Range and Flathead
Fresh storm slabs are expected to be reactive to human triggers on Friday, especially in wind-affected terrain.
Avalanche Problem 1: Storm Slabs
What Elevation?
Which Slopes?
Chances of Avalanches?
Expected Size?
Travel and Terrain Advice
- Avoid terrain traps where small avalanches can have high consequence.
- Use small slopes with low or no consequence to test the bond of the new snow.
- Use caution when transitioning into wind effected terrain.
Avalanche Summary
Explosive control work near Fernie on Wednesday produced small slab avalanches up to size 1.5. Failing cornices also triggered size 2 slab avalanches on northerly aspects. Thursday's storm is expected to create touchy storm slabs reactive to human triggers.
Snowpack Summary
10-15 cm of new snow on Thursday is sitting on a sun crust on solar aspects.
In the upper to mid snowpack, a surface hoar layer buried mid-February is now 80 to 100 cm below the surface on sheltered northerly aspects.
Deeper in the snowpack, the widespread mid-December and late November weak layers are composed of a combination of crusts and sugary facets which are down 200-300 cm.
Weather Forecast
THURSDAY NIGHT: 10-15 cm new snow / Strong southwesterly ridgetop winds / Freezing level around 1500 m.
FRIDAY: 5-15 cm of new snow / Strong southwesterly ridgetop winds / Freezing level around 1500 m.
SATURDAY: Mostly sunny / Light southwesterly ridgetop winds / Freezing level rising to around 1800 m.
SUNDAY: Mostly sunny / Light southwesterly ridgetop winds / Freezing level rising to around 2000 m.
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Fresh storm slabs are expected to be reactive to human triggers on Friday.